This route measuring software (free download!) is pretty cool, and seems to be quite accurate, although it takes a steady hand to trace your route with the cursor. Best not to have too much caffeine beforehand. The Eagle Lake loop came out to be 5.9, exactly what you guys got with the wheel. I measured the Aunt Betty - 7 Bridges loop and got about 6.1 miles. (Kevin was right!) The Park Loop Road (loop from tollhouse, excluding access segments from visitor's center and Stanley Brook Rd) looks to be about 18.3, but that is a pretty rough measurement and seems short. I plan to spend some more time on that, and will post it here.